Trace element deficiencies abound in cattle.
D000818:Animals; D001424:Bacterial Infections / Q000662:veterinary; D002417:Cattle; D002418:Cattle Diseases; D003300:Copper / Q000633:toxicity; D007172:Erectile Dysfunction / Q000662:veterinary; D008297:Male; D014131:Trace Elements / Q000172:deficiency*; D014777:Virus Diseases / Q000662:veterinary
D014131:Trace Elements; D003300:Copper